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Finding the Fourth Proportional to 118,303.86, 163,253.16 and 67,315.54

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Solution

The fourth proportional to 118,303.86, 163,253.16 and 67,315.54 is: 92,891.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,303.86 : 163,253.16 = 67,315.54 : x
  2. Step 2: Convert to fraction form
    118,303.86/163,253.16 = 67,315.54/x
  3. Step 3: Cross multiply
    118,303.86x = 163,253.16 × 67,315.54
  4. Step 4: Simplify right side
    118,303.86x = 10,989,474,622.11
  5. Step 5: Solve for x
    x = 10,989,474,622.11/118,303.86
  6. Step 6: Final answer
    x = 92,891.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.